Ted's flight from Rome took more than 11 hours. He _________ be exhausted after such a long flight.

• can

• must

• have to

• should

Dave: ___________ you hold your breath for more than a minute?

• Can

• Must

• May

• Should

There's a storm coming, so you _________ take an umbrella

• have to

• could

• don't have to

• should

If it doesn't rain tomorrow, we _________ go for a picnic

• have to

• would

• should

• could

John _____ speak English last year, but he can now.

• can't

• mustn't

• couldn't

• doesn't have to

My friend _____ wear a uniform at school.

• doesn't have to

• couldn't

• shouldn't

• can't

You'll do well in the exam, so you _____ worry.

• shouldn't

• mustn't

• can't

• won't

Drivers _____ stop when the traffic lights are red.

• can

• must

• will

• may

The teacher said we _____ read this book in our own free time since it is optional.

• might

• could

• can

• should

There are plenty of tomatoes in the fridge. You _____ buy any.

• shouldn't

• don't have to

• can't

• won't